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#一地# 005 Niagara Falls 尼亚加拉瀑布

想不出名字 2019-11-27 01:36:05

Niagara Falls

意为“雷神之水”。尼亚加拉瀑布以美丽的景色，巨大的水力发电能力和极具挑战性的环境保护工程而闻名于世。整个瀑布跨越加拿大的安大略省和美国的纽约州构成南部的尼亚加拉峡谷。三座瀑布按规模从大到小分别为马蹄瀑布，美国瀑布，布里达尔维尔瀑布。尼亚加拉河由五大湖之一伊利亚湖流出。

A group of three waterfalls at the southern end of Niagara Gorge （峡谷）, between the Canadian province of Ontario and the US state of New York. The largest is Horseshoe Falls, also known as Canadian Falls, which straddles the international border between Canada and the United States. The smaller American Falls and Bridal Veil Falls lie entirely within the United States. Bridal Veil Falls are separated from Horseshoe Falls by Goat Island and from American Falls by Luna Island.

Located on the Niagara River, which drains（放出）Lake Erie into Lake Ontario, the combined falls have the highest flow rate of any waterfall in North America that has a vertical drop of more than 50 metres (160 ft). During peak daytime tourist hours, more than 168,000 m3 (six million cubic feet) of water goes over the crest of the falls every minute. Horseshoe Falls is the most powerful waterfall in North America, as measured by flow rate.（流量最大）

人杰地灵呐

The features that became Niagara Falls were created by the Wisconsin glaciation about 10,000 years ago. The same forces also created the North American Great Lakes and the Niagara River. All were dug by a continental ice sheet that drove through the area, deepening some river channels to form lakes, and damming others with debris.[9] Scientists argue there is an old valley, St David's Buried Gorge, buried by glacial drift, at the approximate location of the present Welland Canal.

瀑布是在约一万年前的冰河时期形成，而同时期的北美洲的五大湖也在此时成形。当时因地形侵蚀关系，河床形成一个大洞，便形成瀑布。也有科学家认为瀑布的前身是山谷，只是刚好有河流流经而形成瀑布。